Ice-machine.



H. E. WILLSIE.

lcs MACHINE.

X APPLICATION men ma. 1. 1914.

.Patented Jan. 7, 1919.

Mmmm

HENRY E. 'WILLSE 0F CRANFORD, NEVI JERSEY.

ren-MACHINE.

1 ,zoenen Specification of Letters Patent.

Application filed March 7, 1914. Serial No. 823.066.

To ill whom it may concer/t.

Be it known that l, Hexer lil. tVniLsir,

l a citizen of the United States, and a resident of Cranford, in the eountv of l'lnion and btate ol hcw Jersey, have invented certain new and usetul improvements in Ieeefvlachines, of which the following is a specificiv tion.

lThe object of my inventioiris to produce an ice makingr and refrigerating apparatus suitable for domestic use, and to this end I have made mvinvention so simple to operate that no especial skill or knowledge ot' refrigeration mael'iinery is necessary to use it successfully. Another object of my invention is to eliminate the parts. usuall)` found in apparatus ot ,this general type, which are liable to get out of order and to usepdevices of great certainty of action. Another object is to provide means for draining into the stillfabsorher when it is at a higher level than the evaporator. 5inother. object is to air insulate the evaporator during the heating period.

I attain these objects h v the mechanism shown in the accompanying drawing'. in whichpFigure l is' a diagrannnatic elevation of the machine; Fig. 2, an end elevation. partly sectional, ot the saine;A Fig. 55. a vertical section through the ice water drain and a portion of the refrigerator; Fig. l, a vertical ,cross section through the refrigeratorand ice pangnnd Fig. 5, a vertical.diagram of a modification of the still-absorber.

Similar characters refer to similar parts.`

The operation of my machine is as follows: A still-absorber, 10, filled with aqua.

ammonia to about the level of thedotted line a, is heated by a blue llame oil stove, 1'1, thus driving ammonia gas through the pipes 13, 14:, 15, 16, the evaporator, 17, the

pipe 18, into the condensing coil 1S), where the gasl is liquefied. The coil 19 is sul merged in Water contained in the tank 2l. When the fuel in the reservoir y12 burns out, allowing the still-absorber to cool and its pressure to decrease the liquid ammonia in vthe coil 19 is forced up pipe 18 into the The returning gas forms.,columnsl ol liquid in both pipes'. i4. 2;). and pipe 22 being shorter 'than pipil l-l all excess' of liquid,

not in pipe -ll and in the holoin of the trap, is tori-ed up pipe- 2;) into the still-al sorber. YThe pipe 22 having' heen emptied of liquid and a eolinnn ol' liquid still remaininpr` in pipe i4. the returning gas' llows 4through pipes 22. 24- into the eireulatixipr pipe ii where the gras. is ahsorhed. by weak liquor f 'Hering through the openin, r 2li.

The ice pan 2T. having` been filled with' water. or brine. lo a level above the bottoni ot' the evaporator l?. a mass ol' iee is frozen about the evaporator and (he water iii-the pan chilled to a retiran-rating temperature. "he bottoni ol' the sheet metal pan .27 forms the. top ol' the l'ood chambersI 251". '35t- Thus' the l'ood ehai'nbers are chilled b v heat passingthroliigh the ysheet metal bottoni into the chilled water ,or ice. when the machine is again started hv lightingr the stove ll, the elbow Ztl is turned down so as to drain water out. ot' the pan 27 to a level below the bottom ot the iwapoi'ator, thus surrounding the evaporator with an air space. The ice, 3l), falls away from the evaporator and continues toehill the water in the pani?. Forrefilling.)r thepan 27 water is poured into the up instead of removing theA turned elbow 29. p water from the pan 27 the whole panniav he lowered. 0r the pan ma)Y be pivoted at 32 and tilted up hv Ithe toggle joints 31, 31, during the freezingr period`r so that the pan bottom is in the position shown by Adotted line 27, thus flowing water about the evaporator. During the heating period. the pan 27 yis leveled, as shown in Fig. 4, lowering the ice and water, or brine, away from the evaporator. n

The refrigerator `is divided into compartments by the partitions 28, 2l f; and also has doors, as 28.

The condensing coil has but one opening, at the bottom, and the capacity ot the coil may be increased by an enlargement or tank, 20, connected to its upper end, but 1such enlargement is substantially a part of the coil. This arrangement increases the efficiency of the coil.

The valve 36 may he opened to drain the evaporator into the trap 23. The casing 37 about the still-absorber 510 is provided with Patented Jan. 7,1915).

I connected therewith the opening` 26.

TWhat I claim and ters Patent, is: K

1. In an ice machine, a condenser, an evaporator' located abovesaid condenser and connected ther desire to secure by Iletewith through a single pipe, a stili-absorber located above said evaporator and adapted to contain a liquid, a trap located below said evaporator and so that liquid may How from' said evaporator to said trap, and two pipes leading from said trap to said stillabsorber, one discharging above 4and the other below the surface of liquid in said still-absorber.

2. In an ice making machine, a condenser, an evaporator located above said condenser and connected therewith through a single pipe, a still-absorber located above said evaporator and adapted to contain a liquid, a trap located below said evaporator and connected therewith so that liquid may flow from said evaporator leading from said trap and discharging one above and the other below the surface of the liquid in. said stillabsorber, and means whereby gas flowing from said still-absorber is made to flow through said first mentioned pipe and gas returning to said still-absorber is made to iiow through said second mentioned pipe.

3. In an ice making machine, the combination of a condenser, an evaporator, a vstillabsorber at a higher level than the evaporator, al` connected in an operative cycle, a trap in the connection between the evaporator and the still-absorber, and a pipe connecting the trap with the still-absorber.

4. In an ice making machine, the combination of a condenser, an evaporator connected to the condenser, a still-absorber at a higher level than. the evaporator, a trap connected to the evaporator, means for drainingr the evaporator into the trap, and

to said trap, two pipes -rator connected to lthe bottom loi" March,v A. D. 1914.

connected to the evaporator, a pipo connecting the bottom of the trap with' the Atop of the still-absorber, and a pipe connecting the trap with the bottom of the still-absorber. p

6. In anice making machine, the combi nation of a still-absorber, an evaporator connectedto the still-absorber, a coil ciosed at the top, a pipe connecting the bottom of the coil with the evaporator.

7. In an ice nx'aking machine, the combination of a tank for cooling water, a condenser closed at its top and located within said tank, an evaporator connected with the bottom of said condenser, a still-absorber, a rectifier connected with the evaporator and with' the still-absorber, and meansfor draining the rectifier into the'still-absorber.

8. In an ice making machine, the combination of a tank for cooling'water, a coil U closed at the top within said tank, an evapoa still-absorber, a rectifier Within said tank connected to the evaporator and to the stillabsorber, and means fordraining the rectifier into the still-absorber.

9. In an ice making machine, the combination of a tank for coolingwater, a coil closed at the top within said tank, an evaporator connected draining the rectifier into the still-absorber.

Signed at Cranford, in the county of Union and State of New Jersey, this 3rd day HENRY n. winners.

of the coil, 1

to the bottom of the coii, al still-absorber at a higher level than the evap-"Y 

